Portable irrigation system



FIG. 1 is a top and front perspective view of a portable irrigation system showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depict unclaimed portions of the portable irrigation system. 

CLAIM The ornamental design for a portable irrigation system, as shown and described. 